jika (fog)(x) = 2x/x+3 dan f(x) = x+1 maka g(x) =
Matematika
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Pertanyaan
jika (fog)(x) = 2x/x+3 dan f(x) = x+1 maka g(x) =
1 Jawaban
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1. Jawaban dewa251202
Bab Fungsi
(f o g)(x) = f(g(x))
2x/(x + 3) = g(x)+ 1
2x/(x + 3) - 1 = g(x)
g(x) = 2x/(x + 3) - (x + 3)/(x + 3)
g(x) = (2x - (x + 3))/(x + 3)
g(x) = (2x - x - 3)/(x + 3)
g(x) = (x - 3)/(x + 3)